I'm having a problem with dialing out over a PRI on a Legend system. If I use ARS and dial 9 then the number,after the first two digits dialed I get "call denied" on the display and fast busy tone. If I try to bypass ARS by dialing the pool # that the PRI trunks are in, I get fast busy immediately. Inbound calls are working fine, no problem there. Anyone have any ideas?